<template>

  <div class="app-container">
    <!-- 搜索表单 -->
    <el-form
      :model="queryParams"
      ref="queryRef"
      :inline="true"
      label-width="80px"
      v-show="showSearch"
    >
      <el-form-item label="品牌名称" prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入品牌名称"
          clearable
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery"
          >搜索</el-button
        >
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <!-- 功能按钮栏 -->
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="Plus" @click="handleAdd"
        v-hasPermi="['product:brand:add']"
          >新增</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="Edit"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['product:brand:edit']"
          >修改</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="Delete"
          @click="handleDelete"
          :disabled="multiple"
           v-hasPermi="['product:brand:remove']"
          >删除</el-button
        >
      </el-col>
      <!-- 功能按钮栏 -->
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <!-- 表格组件 -->
    <el-table
      :data="brandList"
      style="width: 100%"
      v-loading="loading"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" />
      <el-table-column prop="name" label="品牌名称" />
      <el-table-column
        prop="logo"
        label="品牌图标"
        width="180"
        #default="scope"
      >
        <img :src="scope.row.logo" width="50" />
      </el-table-column>
      <el-table-column prop="createTime" label="创建时间" />
      <el-table-column label="操作" #default="scope">
        <el-button
          link
          type="primary"
          icon="EditPen"
          @click="handleUpdate(scope.row)"
           v-hasPermi="['product:brand:edit']"
          >修改</el-button
        >
        <el-button
          link
          type="primary"
          icon="Delete"
          @click="handleDelete(scope.row)"
           v-hasPermi="['product:brand:remove']"
          >删除</el-button
        >
      </el-table-column>
    </el-table>

    <!-- 分页组件 element-plus -->
    <!-- <el-pagination 
        v-show="total>0"
        layout="sizes, prev, pager, next, jumper, ->, total, slot" 
        v-model:page-size="queryParams.pageSize"
        v-model:current-page="queryParams.pageNum"
        :page-sizes="[2, 5, 10]"
        :total="total"
        @size-change="getList"
        @current-change="getList"
         />  -->
    <!-- 分页组件 若依 -->
    <Pagination
      v-show="total > 0"
      v-model:page="queryParams.pageNum"
      v-model:limit="queryParams.pageSize"
      :page-sizes="[2, 5, 10]"
      :total="total"
      @pagination="getList"
    />

    <!-- 新增或修改分类品牌对话框 -->
    <el-dialog :title="title" v-model="open" width="500px">
      <el-form ref="brandRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="品牌名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入品牌名称" />
        </el-form-item>
        <el-form-item label="品牌图标" prop="logo">
          <el-upload
            class="avatar-uploader"
            :action="imgUpload.url"
            :headers="imgUpload.headers"
            :show-file-list="false"
            :on-success="handleAvatarSuccess"
          >
            <img v-if="form.logo" :src="form.logo" class="avatar" />
            <el-icon v-else class="avatar-uploader-icon"><Plus /></el-icon>
          </el-upload>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Brand">
//引入api接口
import {
  listBrand,
  addBrand,
  getBrand,
  updateBrand,
  delBrand,
} from '@/api/product/brand'
import { getToken } from '@/utils/auth.js'
import { ElMessage, ElMessageBox } from 'element-plus'
// import { ElButton } from 'element-plus/lib/components/index.js';
// import { Pagination } from '@/components/Pagination/index.vue'



const { proxy } = getCurrentInstance();

//新增与修改弹出层控制模型
const open = ref(false)
//新增与修改弹出层标题模型
const title = ref('')

//定义分页列表数据模型
const brandList = ref([])

const loading = ref(true)

//定义列表总记录数模型
const total = ref(0)

//定义多选选中的id列表
const ids = ref([])
//定义单选控制模型
const single = ref(true)
//定义多选控制模型
const multiple = ref(true)

//Vue 3 中的两种响应式数据绑定方式：reactive 和 ref
//ref定义：基本数据类型，适用于简单的响应式数据
//reactive定义：对象（或数组）数据类型，则适用于复杂对象或数组的响应式数据
const data = reactive({
  //对话框表单
  form: {},
  //文件上传数据
  imgUpload: {
    // 设置上传的请求头部
    headers: {
      Authorization: 'Bearer ' + getToken(),
    },
    // 图片上传的方法地址:
    url: import.meta.env.VITE_APP_BASE_API + '/file/upload',
  },

  //定义搜索模型
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    name: null,
  },

  rules: {
    name: [{ required: true, message: "品牌名称不能为空", trigger: "blur" }],
    logo: [{ required: true, message: "品牌LOGO不能为空", trigger: "blur" }],
  }
})
//toRefs 是一个Vue3中提供的API，可将一个响应式对象转换为普通对象，其中属性变成了对原始对象属性的引用
const { queryParams, form, imgUpload, rules } = toRefs(data)


//定义隐藏搜索控制模型
const showSearch = ref(true);


//查询品牌列表
function getList() {
  loading.value = true
  listBrand(queryParams.value).then((response) => {
    brandList.value = response.rows
    total.value = response.total
    loading.value = false
  })
}

function handleQuery() {
  getList()
}

function resetQuery() {
   queryParams.value.pageNum = 1
  queryParams.value.pageSize = 10
  queryParams.value.name = null 

  //proxy.resetForm("queryRef"); //不包含页码重置，只重置ref="queryRef"这个表单中的用户交互组件
  handleQuery()
}

//打开新建品牌对话框
function handleAdd() {
  reset()
  open.value = true
  title.value = '添加品牌'
}

//修改：打开修改品牌对话框
function handleUpdate(row) {
  reset()

  const _id = row.id || ids.value //获取品牌id


  getBrand(_id).then((response) => {
    form.value = response.data
    open.value = true
    title.value = '修改品牌'
  })
}

function reset() {
   form.value = {
    id: null,
    name: null,
    logo: null,
  } 
  proxy.resetForm("brandRef");
}

//关闭对话框
function cancel() {
  open.value = false
}

//保存数据
function submitForm() {
  console.log('保存数据')

  //进行表单校验
  proxy.$refs['brandRef'].validate(valid => {

    //如果校验成功
    if(valid){

      if (form.value.id != null) {

        updateBrand(form.value).then((response) => {
          //弹出保存成功提示
          // ElMessage.success('修改成功')
          proxy.$modal.msgSuccess("修改成功");
          //关闭对话框
          open.value = false
          //刷新列表页
          getList()
        })


      } else {
        addBrand(form.value).then((response) => {
          //弹出保存成功提示
          // ElMessage.success('新增成功')
          proxy.$modal.msgSuccess("新增成功");
          //关闭对话框
          open.value = false
          //刷新列表页
          getList()
        })
      }
    }

  })
}

//上传成功的回调
function handleAvatarSuccess(response) {
  console.log('上传成功', response.data.url)
  form.value.logo = response.data.url
}

//删除
function handleDelete(row) {
  /* if(row.id == undefined)
  console.log('row', row.id) */

  //js弱类型、布尔环境下undefined、null、''、0 => false、||的短路用法
  const _ids = row.id || ids.value
  /*  console.log('_ids', _ids) */

  proxy.$modal.confirm('是否确认删除记录？')
    .then(() => {
      return delBrand(_ids)
    })
    .then(() => {
      getList()
    })
    .catch(() => {
      ElMessage({
        type: 'info',
        message: '已取消',
      })
    })
}

//表格复选按钮选择事件
function handleSelectionChange(selection) {
  ids.value = selection.map((item) => item.id)
  single.value = selection.length != 1 //选中0条或多条
  multiple.value = !selection.length //啥也没选
}

//加载品牌列表
getList()
</script>

<style scoped>
.avatar-uploader .avatar {
  width: 178px;
  height: 178px;
  display: block;
}
</style>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed var(--el-border-color);
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--el-transition-duration-fast);
}

.avatar-uploader .el-upload:hover {
  border-color: var(--el-color-primary);
}

.el-icon.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  text-align: center;
}
</style>